Medically reviewed guide · Last updated: 1 September 2026 · Reading time: approx. 10 min

Lumbago: Why Moving Helps Faster Than Resting — and When It Is an Emergency

The most common causes compared

The causes in detail

"Lumbago" describes an event, not a diagnosis: acute, suddenly shooting pain in the lower back. This article focuses on the first days and weeks. Longer-lasting and recurring symptoms are covered in the symptom article on back pain, while treatment and the transition to chronic pain are described in the condition article on back pain.

Classic lumbago: non-specific low back pain

In the vast majority of people with acute low back pain, no clear cause can be found — specialists then speak of non-specific low back pain. Irritated muscles, ligaments and the small joints of the vertebrae probably all play a part. The body reacts by protectively tensing the back muscles, which makes every movement painful and forces you into a protective posture. Triggers are bending, lifting with a twist, an unaccustomed movement — sometimes simply getting out of bed.

Important to keep in mind: how severe the pain is says nothing about damage. The outlook is good; it usually improves markedly within days. To be honest: relapses are common. What is colloquially called a "blockage" is hard to pin down scientifically; spinal manipulation (manual therapy) can help some people in the short term, but according to the guideline it is an option for acute low back pain, not a necessity.

The disc and the sciatic nerve

If disc tissue presses on a nerve root, the pain typically travels into the leg, often below the knee or into the foot, sometimes with tingling, numbness or weakness. The leg pain is then frequently worse than the back pain. More on this under sciatica and herniated disc. Here, too, treatment usually starts without surgery; operations are mainly considered for paralysis, bladder problems or persistent symptoms that cannot be controlled.

The sacroiliac joint: pain above the buttock

The joint between the sacrum and the pelvis can cause one-sided pain low down above the buttock that travels into the buttock and the back of the thigh, rarely below the knee. This is also typical during pregnancy, when the ligaments loosen. It is treated in the same way as classic lumbago: movement, warmth and short-term painkillers if needed.

Vertebral fracture due to osteoporosis

Sudden back pain after a trivial strain — lifting a shopping bag, coughing hard — can be a vertebral fracture in older people, especially with known osteoporosis or after long-term cortisone treatment. Clues are pain when tapping over the spine and, later on, loss of height and an increasingly rounded back. This needs to be examined by a doctor, because the treatment of the osteoporosis depends on it.

When the pain does not come from the back

Some back pain comes from the organs. Kidney stones cause wave-like, colicky pain in the flank that travels into the groin; fever with flank pain points to a kidney infection. Shingles often begins with burning, one-sided pain, with the rash following only days later. Rare but dangerous: a heart attack with pain between the shoulder blades, or a tear in the main artery (aorta) with sudden, tearing back or abdominal pain.

Inflammatory back pain: not lumbago

If the symptoms begin gradually before the age of 45, are worst at night and early in the morning with prolonged morning stiffness, and get better with movement rather than worse, an inflammatory rheumatic disease of the spine may be behind them (axial spondyloarthritis). In that case a rheumatological assessment makes sense.

Self-tests: first clues at home

These tests do not replace a diagnosis. But they help you tell simple lumbago apart from situations that need medical help.

• The radiation check: does the pain stay in the lower back and buttock, or does it travel below the knee, perhaps with tingling or numbness? The latter points more towards an irritated nerve root.
• Heel and toe walking: take a few steps on tiptoe and on your heels. If you cannot manage it on one side — not because of pain, but because the strength is lacking — have it examined by a doctor promptly.
• The saddle and bladder check: does everything feel normal when you wipe after using the toilet? Do you notice when your bladder is full, and can you empty it completely? Anything new or unusual: go to the emergency department immediately.
• The straight leg raise test (Lasègue's sign): while you lie on your back, a second person slowly lifts your straightened leg. Shooting pain below the knee points more towards nerve root irritation; a pulling sensation only at the back of the thigh is usually a muscle stretch.
• The progress check: note your pain intensity from 0 to 10 every day, and how far you can walk. Steady improvement is the best sign; pain that stays just as severe at night at rest is a reason to see a doctor. How to go about it is explained in the guide Keeping a pain diary.

Warning signs: when not to wait

• Numbness in the genital, buttock or inner thigh area, new problems passing urine or opening your bowels
• Increasing weakness in the leg, such as a dropping foot, or symptoms in both legs
• Fever, chills, a recent infection, medicines that weaken the immune system or an injection into the spine
• An accident or fall — with osteoporosis or cortisone treatment, even a trivial one
• A history of cancer, unintended weight loss, night sweats, pain that is worst at night at rest
• Sudden severe pain with chest or abdominal pain, shortness of breath, paleness or feeling faint
• No improvement after about four to six weeks, or worsening symptoms

The treatment pathway: step by step

Without warning signs, the German National Disease Management Guideline recommends a simple, active approach.

1. Keep moving. Short walks around your home, getting up regularly, everyday activities as far as possible. A relieving position — lying on your back with your lower legs raised (the step position) — is fine for short breaks; bed rest is not.
2. Use warmth. A hot-water bottle, heat patches or a warm bath can relax tense muscles. The benefit of cold is less well established; if it does you good, there is nothing against it.
3. Painkillers: targeted and short. They are meant to make movement possible, not to switch off the pain completely.
4. Back to everyday life early. Back to work too, as soon as you can. A short sick note can make sense; resting for a long time tends to do more harm.
5. GP practice. If the pain makes every movement impossible, if it radiates into the leg or if there is no improvement after one to two weeks. There you will be examined and asked about warning signs; an X-ray or MRI is only considered if there are warning signs, or if things have not improved after about six weeks despite treatment.
6. If it persists. With persistent or recurring symptoms, exercise therapy and education are key building blocks. If there are risk factors for the pain becoming chronic — fear of movement, stress, low mood — multimodal pain therapy can help. The treatment decision is made by the practice treating you.

The medication angle: painkillers with a sense of proportion

With lumbago, almost everyone reaches for tablets. That is legitimate — but the choice and the duration make the difference.

What painkillers can do — and what they cannot

If medicines are needed, the guideline names anti-inflammatory painkillers (NSAIDs) such as ibuprofen, diclofenac or naproxen as the first choice — at the lowest effective dose and for as short a time as possible. They can put a strain on the stomach, kidneys, blood pressure and heart. Without medical advice, over-the-counter painkillers should not be taken for pain for longer than four days. In studies on acute low back pain, paracetamol performed hardly better than a placebo, so the guideline takes a critical view of it. Metamizole is an option if NSAIDs are unsuitable; very rarely it can cause a severe drop in white blood cells — fever, a sore throat or inflammation in the mouth while taking metamizole must be assessed by a doctor immediately. Opioids such as tilidine or tramadol are at most an option for a short time if other medicines are not enough; they cause drowsiness and constipation and increase the risk of falls. Muscle relaxants are viewed critically because of side effects such as tiredness and dizziness. The guide Painkillers compared gives an overview.

Medicines that cause back pain themselves

Statins such as atorvastatin can cause muscle pain, including in the back. Rarely, muscle breakdown occurs — severe muscle pain with weakness and dark urine needs to be assessed by a doctor immediately. Cortisone taken long term, such as prednisolone, weakens the bones and increases the risk of vertebral fractures; similar effects are discussed for long-term use of proton pump inhibitors, aromatase inhibitors and some antiepileptics (see Medications and osteoporosis risk). Fluoroquinolone antibiotics such as ciprofloxacin can trigger tendon, muscle and joint pain and are associated with a slightly increased risk of bulges and tears in the main artery (aorta). Bisphosphonates such as alendronic acid commonly cause bone, muscle and joint pain. And on blood thinners, sudden severe back or flank pain can, rarely, mean internal bleeding — that needs to be examined by a doctor immediately.

How to prevent lumbago

• Move regularly — exercise programmes, ideally combined with knowledge about back pain, are the measure with the most solid evidence against relapses. Which kind of exercise is secondary: the main thing is that it fits into your everyday life.
• Build strength and flexibility — strong trunk and leg muscles make everyday strains easier. They are not a cure-all, though.
• Lift heavy loads with a plan — keep the load close to your body, no twisting, lift with your legs. Plausible, even though lifting training on its own showed little protection in studies.
• Take stress and sleep seriously — psychological strain and lack of sleep make back pain more likely and make recovery harder.
• No miracle aids — back belts and special shoe insoles have shown no preventive benefit in studies, and there is no one perfect mattress.

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